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If Long Island had a flag, it would be pink, white and green, with narrow bands of chocolate brown on the top and bottom. It would, indeed, look like a rainbow cookie.
That neon-hued confection, pride of a thousand Italian-American pastry shops, long ago busted its bakery bonds and can now be found at local supermarkets, delis and even at Costco.
Delicious, perhaps, but the rainbow cookie...